Price Check : Grand Theft Auto: San Andreas (ROW)

https://www.steamtrades.com/ You can check it there.

I just checked, and it's kind of all over the place. Cheapest I saw was 15 TF2; most expensive was 35. If you go after the GTA Collection in order to get it, it's going to be around 50.

I would recommend using the grey market. Looks like you can get a global copy for $12 on Gamivo or Kinguin. $16 on G2A.

https://dispenser.tf/?s=san+andreas cheapest here is 11TF2
https://www.inventory.gift/gifts/Grand%20Theft%20Auto%3A%20San%20Andreas?s as alternative source